Apparatus and method for injecting liquid crystal material
AssigneeLG. Philips LCD Co., Ltd.
InventorsSu-Seok Choi, Yong-Bum Kim
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Abstract
A liquid crystal injection apparatus and method for injecting a liquid crystal material between substrates of a liquid crystal display panel. The method and apparatus includes using an electric field to orientate the liquid crystal material during injection such that the liquid crystal material has a reduced viscosity. The electric field can be produced by electrodes adjacent the substrates, and by an electric source that applies a potential to the electrodes. Liquid crystal material injection can be the result of capillary forces and/or differential pressure.
Claims12
A method of injecting liquid crystal material inside a liquid crystal cell having an injection port, and a gap between a first substrate and a second substrate, wherein each substrate include an orientation film, the method comprising;
- inducing an electric field within the liquid crystal cell such that said electric field is substantially normal to said first substrate and to said second substrate;
- and
- injecting a liquid crystal material through the injection port and into the gap between the first and second substrates,
- wherein the electric field is induced by locating the first substrate and the second substrate between a first electrode and a second electrode and by applying a potential between the first electrode and the second electrode.
A method of injecting liquid crystal material inside a liquid crystal cell having an injection port, and a gap between a first substrate and a second substrate, the method comprising;
- locating the liquid crystal cell inside a vacuum chamber;
- evacuating the vacuum chamber and the liquid crystal cell;
- inducing an electric field within the liquid crystal cell such that said electric field is substantially normal to said first substrate and to said second substrate;
- and
- dipping the injection port into a liquid crystal material,
- wherein the electric field is induced by locating the first substrate and the second substrate between a first electrode and a second electrode and by applying a potential between the first electrode and the second electrode.
A method of injecting liquid crystal material inside a liquid crystal cell having an injection port and a gap between a first substrate and a second substrate, wherein the first substrate and the second substrate each have an orientation film, the method comprising the steps of;
- locating the liquid crystal cell inside a vacuum chamber;
- evacuating the vacuum chamber and the liquid crystal cell;
- inducing an electric field within the liquid crystal cell such that said electric field is substantially parallel to the orientation of said orientation film;
- and
- contacting the injection port with a liquid crystal material.
Dependencies are inferred from the claim text.